68859745984 has 56 divisors (see below), whose sum is σ = 138029411520. Its totient is φ = 34082140416.

The previous prime is 68859745973. The next prime is 68859746003. The reversal of 68859745984 is 48954795886.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3075759 + ... + 3098065.

It is an arithmetic number, because the mean of its divisors is an integer number (2464810920).

Almost surely, 2^68859745984 is an apocalyptic number.

68859745984 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

68859745984 is an abundant number, since it is smaller than the sum of its proper divisors (69169665536).

68859745984 is a wasteful number, since it uses less digits than its factorization.

68859745984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22805 (or 22795 counting only the distinct ones).

The product of its digits is 696729600, while the sum is 73.

The spelling of 68859745984 in words is "sixty-eight billion, eight hundred fifty-nine million, seven hundred forty-five thousand, nine hundred eighty-four".